报告题目

Watching and controlling single molecules in nm-scale plasmonic cavities

报 告 人

Prof. Jeremy J. Baumberg

the University of Cambridge

报告地点

北京大学物理学院中215室

报告时间

2016年4月6日上午10:00-11:00

联 系 人

吕国伟 (guowei.lu@pku.edu.cn)

报告摘要

Coupling between plasmonic nano-components generates strongly red-shifted resonances combined with intense local field amplification on the nanoscale. This allows directly seeing molecules as well as excitations in semiconductors. We have recently explored plasmonic coupling which can be tuned dynamically, through reliable bottom-up self-assembly. The crucial aspect of these systems is the extreme sensitivity to separation, and how quantum tunneling starts to be directly seen at room temperature in ambient conditions. We recently demonstrated how quantum plasmonics controls the very smallest space that light can be squeezed into.

We also demonstrate the possibility to track few molecules using the extreme enhancements. We show how the new generation of 2D semiconductors can couple to such nano-scale gaps utilizes our nanoparticle on mirror geometry.

报告人简介：Prof. Jeremy J. Baumberg FRS, has extensive experience in developing optical materials structured on the nano-scale and also directs the Cambridge Nano Doctoral Training Centre. Together with strong experience with Hitachi, IBM, and spin-offs led to Royal Society Rumford Medal (2014), IoP Young Medal (2013), Royal Society Mullard Prize (2005), the IoP Charles Vernon Boys Medal (2000) and the IoP Mott Lectureship (2005).